Change in Book Value of Nonamortizable Intangible Assets (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 12, 2021	Dec. 26, 2020
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 36,631	$ 36,369
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(9)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	271
Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	807	805
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(8)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	10
QFNA
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	189	189
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	23,720	23,954
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(2)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(232)
Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,395	1,310
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(2)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	87
Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,050	999
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	3
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	48
Latin America (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	556	566
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(10)
Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	8,914	8,546
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	368
Goodwill
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	18,893	18,757
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(9)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	145
Goodwill | Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	466	465
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(8)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	9
Goodwill | QFNA
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	189	189
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
Goodwill | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	12,217	12,189
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(2)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	30
Goodwill | Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,159	1,096
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(2)
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	65
Goodwill | Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	570	554
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	3
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	13
Goodwill | Latin America (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	451	458
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(7)
Goodwill | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	3,841	3,806
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	35
Brands
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	8,365	8,301
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	64
Brands | Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	341	340
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	1
Brands | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	2,798	3,122
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(324)
Brands | Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	236	214
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	22
Brands | Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	480	445
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	35
Brands | Latin America (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	105	108
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(3)
Brands | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	4,405	4,072
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	333
Reacquired Franchise Rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,656	7,603
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	53
Reacquired Franchise Rights | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,158	7,107
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	51
Reacquired Franchise Rights | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	498	496
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	2
Acquired franchise rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,717	1,708
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	9
Acquired franchise rights | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,547	1,536
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	11
Acquired franchise rights | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	170	$ 172
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	$ (2)